Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
Shift Point Road Test
This test verifies that the shift control system is operating
correctly.
1. Bring engine and transmission up to normal operating temperature.
2. Operate vehicle with transmission range selector lever in (D)
position.
3. NOTE: Shift speed ranges a ...
Ignition Lock Cylinder - Non-Functional
Removal and Installation
1. NOTE: Make sure the front wheels are in the straight-ahead
position.
Disconnect the battery ground cable (14301) and wait at least one minute
to allow the depletion
of the restraint system backup power supply. For addit ...
Removal
CAUTION: Suspension fasteners are critical parts because they affect
performance of vital
components and systems and their failure can result in major service expense. A
new part with
the same part number must be installed if installation becomes necessary. ...
